That's physically impossible. You want to leave after 17:30 which is 5:30 pm and arrive at 5 pm? Try that again please.
Can I get the train ID and arrival time for the first train after 17:30 on Friday, going from Kings Cross to Cambridge?
train-day train-departure train-destination train-leaveat
train-day train-departure train-destination train-leaveat
train-day train-departure train-destination train-leaveat
train-day train-departure train-destination train-leaveat